Lucid

//ˈl(j)uːsɪd// adj, name, noun

adj, name, noun ·Common ·High school level

Definitions

Noun
  1. 1
    A lucid dream.

    "The day before nightmare-initiated lucids, subjects reported more depressed feelings[…]"

Adjective
  1. 1
    Clear; easily understood.

    "[T]he book, constructed in short, lucid episodes, can be satisfyingly read as a sequence of provocative talks, at once well informed and vatic."

  2. 2
    Mentally rational; sane.
  3. 3
    Bright, luminous, translucent, or transparent.

    "The atmosphere was unusually clear, as if loath to part with the daylight; but the moon, like a round of lucid snow, had risen on the sky; and a pale, soft gleam, came from the lamps amid the foliage."

Adjective
  1. 1
    (of language) transparently clear; easily understandable wordnet
  2. 2
    transmitting light; able to be seen through with clarity wordnet
  3. 3
    capable of thinking and expressing yourself in a clear and consistent manner wordnet
  4. 4
    having a clear mind wordnet
Proper Noun
  1. 1
    A surname from Irish.

Example

More examples

"People that have experienced so-called 'lucid dreams' often describe them as being 'more real than reality'. They also describe reality after waking up from a 'lucid dream' to be like a 'whimsical dream'."

Etymology

Etymology 1

Latin lucidus, from lūceō (“shine”) + -idus.

Etymology 2

Perhaps a variant of Lucey.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.